兰州大学机构库 >土木工程与力学学院
Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation
Wang, Ji1; Chai, Jianlong2; Zhang, Hongpeng2; Tai, Pengfei2; Liu, Chao2; Niu, Lijuan2; He, Wenhao3; Huang, Weiying4; Shu, Rui5; Luo, Laihui1; Li, Weiping1; Zhu, Yabin2; Yao, Cunfeng2; Gao, PF(高配峰)6
2021-08-15
Source PublicationJOURNAL OF NUCLEAR MATERIALS
ISSN0022-3115
Volume552
AbstractAn Fe50Mn30Co10Cr10 dual-phase high-entropy alloy (DP-HEA) was irradiated at room temperature with 3 MeV Fe ions to a dose of 50 displacement per atom (dpa). Potentials of special elemental designed DP-HEAs with low stacking fault energy (SFE) as promising candidate materials for future nuclear energy systems are evaluated. Transmission electron microscopy (TEM) analysis finds that FCC gamma-gamma, HCP epsilon-epsilon twinning structures and FCC gamma-HCP epsilon co-existed structures of the DP-HEA, which correlate with the combined high strength and high ductility featured by this alloy, remain stable under a displacement damage of 50 dpa. No elemental segregation after irradiation was detected by energy dispersive spectroscopy. The results indicate that TWIP and TRIP mechanisms, owned by many other DP-HEAs, may still work effectively, and the materials still possess the merits of combined high strength and ductility brought by TWIP and TRIP mechanisms under irradiation conditions. Defects free channels (DFCs) and abundant Lomer-Cottrell (L-C) locks are observed in the irradiated samples after tensile deformation. The immobile L-C locks restrict DFCs growth, prevent the pile-up of dislocation along grain boundaries, thus sustaining dislocations in the grain interior. This study provides a new strategy to improve simultaneously the irradiation resistance and mechanical properties of structural materials by introducing the TWIP and TRIP mechanisms. (C) 2021 Elsevier B.V. All rights reserved.
KeywordHigh-entropy alloyIrradiationTEMTwinning-induced plasticityTransformation-induced plasticity
PublisherELSEVIER
DOI10.1016/j.jnucmat.2021.153006
Indexed ByEI ; SCOPUS ; SCIE
Language英语
WOS Research AreaMaterials ScienceNuclear Science & Technology
WOS SubjectMaterials Science, MultidisciplinaryNuclear Science & Technology
WOS IDWOS:000653052500004
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/450655
Collection土木工程与力学学院
Corresponding AuthorZhu, Yabin
Affiliation1.Ningbo Univ, Sch Phys Sci & Technol, Ningbo 315211, Peoples R China;
2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China;
3.Chinese Acad Sci, Lanzhou Inst Chem Phys, Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China;
4.Changsha Univ Sci & Technol, Sch Energy & Power Engn, Changsha 410114, Peoples R China;
5.Linkoping Univ, Dept Phys, Thin Film Phys Div, Linkoping, Sweden;
6.Lanzhou Univ, Coll Civil Engn & Mech, Key Lab Mech Western Disaster & Environm, Minist Educ, Lanzhou 730000, Peoples R China
First Author AffilicationSchool of Physical Sicence and Technology
Corresponding Author AffilicationSchool of Nuclear Science and Technology
Recommended Citation
GB/T 7714
Wang, Ji,Chai, Jianlong,Zhang, Hongpeng,et al. Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation[J]. JOURNAL OF NUCLEAR MATERIALS,2021,552.
APA Wang, Ji.,Chai, Jianlong.,Zhang, Hongpeng.,Tai, Pengfei.,Liu, Chao.,...&Gao, Peifeng.(2021).Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation.JOURNAL OF NUCLEAR MATERIALS,552.
MLA Wang, Ji,et al."Microstructure investigations of Fe50Mn30Co10Cr10 dual-phase high-entropy alloy under Fe ions irradiation".JOURNAL OF NUCLEAR MATERIALS 552(2021).
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